Area Code +1-301-(5520000...5529999) located in Berwyn, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 301 Subscriber Number From : 5520000 Subscriber Number To : 5529999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : VERIZON MARYLAND INC Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : MD Region Name : Maryland City : Berwyn Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.9900 Longitude : -76.9100 ‹ previous : +1-301-(5510000...5519999) next › : +1-301-(5530000...5539999) Dialling Instructions For trunk calls: 0 301 5520000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 5520000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5520000 ~ 5529999 (Count: 10,000) Example: +1-301-5520000 / 0111-301-5520000 (1301-5520000 / 1-301-5520000) +1-301-5520001 / 0111-301-5520001 (1301-5520001 / 1-301-5520001) +1-301-5520002 / 0111-301-5520002 (1301-5520002 / 1-301-5520002) +1-301-5520003 / 0111-301-5520003 (1301-5520003 / 1-301-5520003) +1-301-5520004 / 0111-301-5520004 (1301-5520004 / 1-301-5520004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-5529995 / 0111-301-5529995 (1301-5529995 / 1-301-5529995) +1-301-5529996 / 0111-301-5529996 (1301-5529996 / 1-301-5529996) +1-301-5529997 / 0111-301-5529997 (1301-5529997 / 1-301-5529997) +1-301-5529998 / 0111-301-5529998 (1301-5529998 / 1-301-5529998) +1-301-5529999 / 0111-301-5529999 (1301-5529999 / 1-301-5529999)